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聚氯乙烯電纜

聚氯乙(yi)(yi)烯絕緣電(dian)(dian)(dian)(dian)(dian)纜(lan)電(dian)(dian)(dian)(dian)(dian)線產品分(fen)為固定布(bu)線用無(wu)保護套(tao)(tao)電(dian)(dian)(dian)(dian)(dian)纜(lan)、固定布(bu)線用護套(tao)(tao)電(dian)(dian)(dian)(dian)(dian)纜(lan)、輕型無(wu)護套(tao)(tao)軟電(dian)(dian)(dian)(dian)(dian)纜(lan)、一般用途護套(tao)(tao)軟電(dian)(dian)(dian)(dian)(dian)纜(lan)、安裝(zhuang)用電(dian)(dian)(dian)(dian)(dian)纜(lan)和屏蔽電(dian)(dian)(dian)(dian)(dian)線、特殊用途保護套(tao)(tao)軟電(dian)(dian)(dian)(dian)(dian)纜(lan)、聚氯乙(yi)(yi)烯絕緣阻(zu)燃(ran)耐火電(dian)(dian)(dian)(dian)(dian)纜(lan)等產品

歷史

電(dian)(dian)線電(dian)(dian)纜(lan)行業是我(wo)國(guo)經濟建設(she)的重要(yao)配套產(chan)(chan)業，廣泛應用(yong)于國(guo)民經濟各個(ge)領域，占(zhan)據著中國(guo)電(dian)(dian)工行業1/4的行業，是機(ji)械工業中僅次(ci)于汽車行業的第二大產(chan)(chan)業。其(qi)中，室內裝修使用(yong)的電(dian)(dian)線主要(yao)是額(e)定(ding)電(dian)(dian)壓450/750v及以下聚氯(lv)乙烯絕緣電(dian)(dian)纜(lan)，又稱電(dian)(dian)線。

電(dian)線質量的考核主(zhu)要由專業檢驗機構進行檢驗，報告中主(zhu)要的技術指標有以下(xia)：

1、導體直流(liu)電阻。直接反映電線(xian)的(de)載流(liu)能(neng)(neng)力，也(ye)就是(shi)通常所說能(neng)(neng)帶多大的(de)負載。該(gai)指標與導體材(cai)質、導體截面積（電線(xian)規格）也(ye)就是(shi)線(xian)徑有關

2、成品(pin)耐(nai)壓試驗。主要(yao)考核電線的(de)絕(jue)緣(yuan)是否有(you)漏(lou)電。該指標(biao)與絕(jue)緣(yuan)的(de)材(cai)料和(he)制造(zao)工(gong)藝有(you)關(guan)

3、絕緣(yuan)（護(hu)套）厚度(du)及機械性能等(deng)項目。主要考核電(dian)(dian)線(xian)使(shi)用壽命(ming)及使(shi)用環境。絕緣(yuan)厚度(du)過薄(bo)或(huo)扁芯(xin)，容易在(zai)安(an)裝或(huo)使(shi)用中在(zai)薄(bo)的位置(zhi)發(fa)生破損，形(xing)成漏電(dian)(dian)。使(shi)用劣質絕緣(yuan)材料的電(dian)(dian)線(xian)使(shi)用壽命(ming)短。

選購

1、首(shou)選正規廠家、商家產品(pin)。成(cheng)盤包(bao)裝的電(dian)線應有(you)合格(ge)證，電(dian)線本體(ti)應印有(you)廠名或商標(biao)、電(dian)壓、3C標(biao)志等(deng)。廠家假冒(mao)偽(wei)劣(lie)電(dian)線往(wang)往(wang)是“三無”產品(pin)，但(dan)上面卻也有(you)模(mo)棱兩可的產地等(deng)標(biao)識，如中國(guo)制(zhi)造、中國(guo)某省或某市制(zhi)造等(deng)，這實際等(deng)于未(wei)標(biao)產地。

2、布電線(xian)(xian)(xian)目(mu)前使(shi)用(yong)(yong)(yong)的(de)導體(ti)材料主要有銅(tong)和鋁(lv)。在選(xuan)購(gou)時(shi)首先應根據(ju)使(shi)用(yong)(yong)(yong)的(de)負載選(xuan)擇(ze)相應的(de)規(gui)(gui)格(ge)(ge)，如照明(ming)線(xian)(xian)(xian)路(lu)使(shi)用(yong)(yong)(yong)1.5平方毫米(mi)的(de)鋁(lv)線(xian)(xian)(xian)或(huo)(huo)2.5平方毫米(mi)的(de)鋁(lv)線(xian)(xian)(xian)，如空調、微波爐、烤(kao)箱(xiang)等(deng)使(shi)用(yong)(yong)(yong)2.5平方毫米(mi)的(de)銅(tong)線(xian)(xian)(xian)或(huo)(huo)4平方毫米(mi)的(de)鋁(lv)線(xian)(xian)(xian)，選(xuan)擇(ze)合適規(gui)(gui)格(ge)(ge)的(de)電線(xian)(xian)(xian)可(ke)避免由于小(xiao)規(gui)(gui)格(ge)(ge)電線(xian)(xian)(xian)載流量不(bu)夠引(yin)起短路(lu)發生火災；其(qi)次選(xuan)購(gou)時(shi)應注意導體(ti)的(de)質(zhi)量，合格(ge)(ge)的(de)銅(tong)芯(xin)(xin)電線(xian)(xian)(xian)應使(shi)用(yong)(yong)(yong)紫紅色(se)、有光(guang)澤、手感軟的(de)銅(tong)線(xian)(xian)(xian)，而(er)偽劣的(de)銅(tong)芯(xin)(xin)線(xian)(xian)(xian)銅(tong)芯(xin)(xin)為紫黑色(se)、偏黃或(huo)(huo)偏白，雜志(zhi)多，機(ji)械(xie)強度(du)差(cha)，韌勁(jing)不(bu)佳，稍用(yong)(yong)(yong)力即會折斷，而(er)且如果多股銅(tong)絲常(chang)有斷線(xian)(xian)(xian)現(xian)象，使(shi)用(yong)(yong)(yong)壽命短。

3、布電(dian)(dian)線(xian)使用的外皮為聚(ju)氯乙(yi)烯絕(jue)(jue)(jue)緣材料。合格的電(dian)(dian)線(xian)絕(jue)(jue)(jue)緣應該(gai)外觀光滑、表面印(yin)字清晰(xi)。從電(dian)(dian)線(xian)頭觀察，絕(jue)(jue)(jue)緣應均(jun)勻，不(bu)偏(pian)芯(xin)。有些偽劣(lie)斷(duan)線(xian)絕(jue)(jue)(jue)緣層看上(shang)去似(si)乎(hu)很(hen)厚實，實際(ji)上(shang)大多是用再(zai)生塑料制成的，時間一長(chang)，絕(jue)(jue)(jue)緣層會老化漏電(dian)(dian)。

4、質量好的電線，一般(ban)都在規定(ding)的重量范(fan)圍內。價格上，由(you)于假冒偽(wei)劣的制(zhi)作成本低，因此(ci)，商販在銷(xiao)售(shou)時，常以物美價廉為幌子低價銷(xiao)售(shou)，讓人(ren)上當。

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